Anaphylaxis is a rapid, severe, and potentially life-threatening allergic reaction that occurs as the body’s extreme response to an allergen. It develops quickly and can cause breathing difficulties, a sudden drop in blood pressure, and even death if untreated.
🧬 Causes:
Common triggers of anaphylaxis include:
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Foods (e.g., nuts, fish, eggs)
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Medications (e.g., penicillin, aspirin)
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Insect stings (wasps, bees)
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Latex and other chemicals
⚡ Symptoms:
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Difficulty breathing, swelling (especially of the tongue and throat)
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Skin redness, rash, itching
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Sudden drop in blood pressure, dizziness
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Rapid or slow heartbeat
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Agitation, loss of consciousness
⏳ Onset:
Anaphylaxis typically develops within minutes to a few hours after exposure to the allergen and requires immediate medical attention.
🩺 Treatment:
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Epinephrine (adrenaline) is the first-line treatment; it constricts blood vessels and opens airways.
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Additional treatments may include antihistamines, corticosteroids, and oxygen therapy.
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Emergency medical help is essential.
🔬 Mechanism:
When exposed to an allergen, the body’s mast cells and basophils release histamine and other chemicals, causing blood vessels to dilate, tissues to swell, and triggering allergic symptoms.
🔑 Important:
If symptoms of anaphylaxis occur, seek emergency medical care immediately, as delays can be fatal.